This commit also reverts go.mod to use 1.18 to match the state of the
codebase from before the go 1.20 upgrade.
This allows older codebases to upgrade to a version of this library
that can encode/decode multi-cause errors from newer versions without
completely discarding the child cause error info.
This commit also reverts go.mod to use 1.18 to match the state of the codebase from before the go 1.20 upgrade.
This allows older codebases to upgrade to a version of this library that can encode/decode multi-cause errors from newer versions without completely discarding the child cause error info.
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